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include(RunCMake)
# For `if (IN_LIST)`
cmake_policy(SET CMP0057 NEW)
run_cmake(compiler_introspection)
include("${RunCMake_BINARY_DIR}/compiler_introspection-build/info.cmake")
# Test negative cases where C++20 modules do not work.
run_cmake(NoCXX)
if ("cxx_std_20" IN_LIST CMAKE_CXX_COMPILE_FEATURES)
# This test requires that the compiler be told to compile in an older-than-20
# standard. If the compiler forces a standard to be used, skip it.
if (NOT forced_cxx_standard)
run_cmake(NoCXX20)
endif ()
# This test uses C++20, but another prerequisite is missing, so forced
# standards don't matter.
run_cmake(NoCXX20ModuleFlag)
endif ()
if (RunCMake_GENERATOR MATCHES "Ninja")
execute_process(
COMMAND "${CMAKE_MAKE_PROGRAM}" --version
RESULT_VARIABLE res
OUTPUT_VARIABLE ninja_version
ERROR_VARIABLE err
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_STRIP_TRAILING_WHITESPACE)
if (res)
message(WARNING
"Failed to determine `ninja` version: ${err}")
set(ninja_version "0")
endif ()
endif ()
set(generator_supports_cxx_modules 0)
if (RunCMake_GENERATOR MATCHES "Ninja" AND
ninja_version VERSION_GREATER_EQUAL "1.11" AND
"cxx_std_20" IN_LIST CMAKE_CXX_COMPILE_FEATURES)
set(generator_supports_cxx_modules 1)
endif ()
if (RunCMake_GENERATOR MATCHES "Visual Studio" AND
CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL "19.34")
set(generator_supports_cxx_modules 1)
endif ()
# Test behavior when the generator does not support C++20 modules.
if (NOT generator_supports_cxx_modules)
if ("cxx_std_20" IN_LIST CMAKE_CXX_COMPILE_FEATURES)
run_cmake(NoDyndepSupport)
endif ()
# Bail; the remaining tests require the generator to successfully generate
# with C++20 modules in the source list.
return ()
endif ()
set(fileset_types
Modules)
set(scopes
Interface
Private
Public)
foreach (fileset_type IN LISTS fileset_types)
foreach (scope IN LISTS scopes)
run_cmake("FileSet${fileset_type}${scope}")
endforeach ()
run_cmake("FileSet${fileset_type}InterfaceImported")
# Test the error messages when a non-C++ source file is found in the source
# list.
run_cmake("NotCompiledSource${fileset_type}")
run_cmake("NotCXXSource${fileset_type}")
endforeach ()
run_cmake(InstallBMI)
run_cmake(InstallBMIGenericArgs)
run_cmake(InstallBMIIgnore)
run_cmake(ExportBuildCxxModules)
run_cmake(ExportInstallCxxModules)
# Generator-specific tests.
if (RunCMake_GENERATOR MATCHES "Ninja")
run_cmake(NinjaDependInfoFileSet)
run_cmake(NinjaDependInfoExport)
run_cmake(NinjaDependInfoBMIInstall)
elseif (RunCMake_GENERATOR MATCHES "Visual Studio")
# Not supported yet.
else ()
message(FATAL_ERROR
"Please add 'DependInfo' tests for the '${RunCMake_GENERATOR}' generator.")
endif ()
# Actual compilation tests.
if (NOT CMake_TEST_MODULE_COMPILATION)
return ()
endif ()
function (run_cxx_module_test directory)
set(test_name "${directory}")
if (NOT ARGN STREQUAL "")
list(POP_FRONT ARGN test_name)
endif ()
set(RunCMake_TEST_SOURCE_DIR "${CMAKE_CURRENT_LIST_DIR}/examples/${directory}")
set(RunCMake_TEST_BINARY_DIR "${RunCMake_BINARY_DIR}/examples/${test_name}-build")
if (RunCMake_GENERATOR_IS_MULTI_CONFIG)
set(RunCMake_TEST_OPTIONS -DCMAKE_CONFIGURATION_TYPES=Debug)
else ()
set(RunCMake_TEST_OPTIONS -DCMAKE_BUILD_TYPE=Debug)
endif ()
if (RunCMake_CXXModules_INSTALL)
set(prefix "${RunCMake_BINARY_DIR}/examples/${test_name}-install")
file(REMOVE_RECURSE "${prefix}")
list(APPEND RunCMake_TEST_OPTIONS
"-DCMAKE_INSTALL_PREFIX=${prefix}")
endif ()
list(APPEND RunCMake_TEST_OPTIONS
"-DCMake_TEST_MODULE_COMPILATION_RULES=${CMake_TEST_MODULE_COMPILATION_RULES}"
${ARGN})
run_cmake("examples/${test_name}")
set(RunCMake_TEST_NO_CLEAN 1)
run_cmake_command("examples/${test_name}-build" "${CMAKE_COMMAND}" --build . --config Debug)
if (RunCMake_CXXModules_INSTALL)
run_cmake_command("examples/${test_name}-install" "${CMAKE_COMMAND}" --build . --target install --config Debug)
endif ()
if (NOT RunCMake_CXXModules_NO_TEST)
run_cmake_command("examples/${test_name}-test" "${CMAKE_CTEST_COMMAND}" -C Debug --output-on-failure)
endif ()
endfunction ()
string(REPLACE "," ";" CMake_TEST_MODULE_COMPILATION "${CMake_TEST_MODULE_COMPILATION}")
# Tests which use named modules.
if ("named" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(simple)
run_cxx_module_test(library library-static -DBUILD_SHARED_LIBS=OFF)
run_cxx_module_test(object-library)
run_cxx_module_test(generated)
run_cxx_module_test(deep-chain)
run_cxx_module_test(duplicate)
set(RunCMake_CXXModules_NO_TEST 1)
run_cxx_module_test(circular)
unset(RunCMake_CXXModules_NO_TEST)
run_cxx_module_test(same-src-name)
run_cxx_module_test(scan_properties)
endif ()
# Tests which require compile commands support.
if ("compile_commands" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(export-compile-commands)
endif ()
# Tests which require collation work.
if ("collation" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(public-req-private)
set(RunCMake_CXXModules_NO_TEST 1)
run_cxx_module_test(req-private-other-target)
unset(RunCMake_CXXModules_NO_TEST)
endif ()
# Tests which use named modules in shared libraries.
if ("shared" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(library library-shared -DBUILD_SHARED_LIBS=ON)
endif ()
# Tests which use partitions.
if ("partitions" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(partitions)
endif ()
# Tests which use internal partitions.
if ("internal_partitions" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(internal-partitions)
endif ()
# Tests which install BMIs
if ("export_bmi" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(export-interface-no-properties-build)
run_cxx_module_test(export-interface-build)
run_cxx_module_test(export-bmi-and-interface-build)
endif ()
# All of the following tests perform installation.
set(RunCMake_CXXModules_INSTALL 1)
# Tests which install BMIs
if ("install_bmi" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(install-bmi)
run_cxx_module_test(install-bmi-and-interfaces)
if ("export_bmi" IN_LIST CMake_TEST_MODULE_COMPILATION)
run_cxx_module_test(export-interface-no-properties-install)
run_cxx_module_test(export-interface-install)
run_cxx_module_test(export-bmi-and-interface-install)
endif ()
endif ()
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